# A185754 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 7
5 36
6 243
7 2016
8 19745
9 222318
10 2824546
11 39938124
12 621808679
13 10569132576
14 194745803641
15 3866820606006
16 82313887902511
17 1870203518285750
18 45174881008705328
19 1156071783429567906
20 31246398342838909318